Who would have ever thought that running could become a form of graffiti – or rather graffiti for the impaired. Thanks to a new Nike+ GPS app, you can now track your runs on the map and connect your speed to a location. To promote this new app Boondoggle Amsterdam came up with the idea to organize a graffiti contest on Facebook, called ‘Take Mokum’ (Amsterdam’s local nickname). The ten tags with the most ‘likes’ on Facebook will be exhibited in the Nike Runhouse, a new ‘running club’ in the Amsterdam Van Baerlestraat. The club is only accessible for members of the Nike Running community on Facebook – not making it a place for everyone that is interested in running seems a bit of a missed opportunity. The winners will also win a pair of auto-designed NikeiD’s LunarGlide+2. What a great way to activate your audience.